Ments



3 Sheets-Sheet 1. R. J. SHEEHY.

(No Model.) I l PRINTING TELEGRAPH.

Patented Oct. 10, 1893.

3 SheetsSheet 2.

; Patented 0ot .,10,-1893.

% 'Illllll III (NoModel') R J SHEEHY' PRINTING TELEGRAPH- (No Model.)

R; J. SHBEHY.

PRINTING TELEGRAPH.

No. 506,269. Patented Oct. 10, 1893.

Q/Vi/Dwmo 3144mm 113064921 1 J'ee] a Sheets-Shet 3.

WW I

UNITED STATES PATENT OFFICE.

ROBERT J. SHEEHY, OF NEW YORK, N. Y., ASSIGNOR, BY MESNE ASSIGN- MENTS,TO W'ENDELL GOODWIN, OF SAME PLACE.

PRINTING-TELEGRAPH.

SPECIFICATION forming part of Letters Patent No. 506,269, dated October10, 1893.

Application filed March 11, 1886. Renewed March 15, 1898. Serial No.466,169. (No model.)

To all whom it may concern:

Be it known that I, ROBERT J. SHEEHY, a citizen of the United States,residing in New York, in the county and State of New York, have inventedcertain new and useful Improvements in Printing-Telegraphs, of which thefollowingis a specification.

The invention relates to the class of apparatus employed for printingmessages and dispatches, from one or more type-wheels, revolved by meansof electric currents transmitted from a distant station.

The object of the invention, is to provide an instrument capable ofefficient work, which is rapid and noiseless in its operation, and isdriven without the use of weights and springs such as are usuallyemployed in this class of instruments.

In general terms the invention consists in organizing a printinginstrument in substantially the following manner:The typewheels aremounted upon a shaft which is driven by means of two revolvingarmaturelevers, alternately acted upon by two independentelectro-magnets. These electro-magnets are included in independentcircuits and are designed to be alternately vitalized. Oneelectro-magnet,with its armature-lever, serves to advance the type-wheelshaft a distance correspondingtoonetype. Theotherelectro-magnet is thenvitalized and the consequent movement of its armature-lever advances thetype Wheel another equal space, at the same time advancing the firstarmature-lever a corresponding distance, so that when its magnet issubsequently vitalized its armature-lever is again advanced by theattraction of the magnet. In this manner the type-wheel shaft isadvanced step-by-step, under the control of the transmitting instrument.Impressions are preferably taken from either of the two type-wheels atwill, by means of a press-lever which is actuated by a current of theproper character, transmitted through either of two electro-magnets.These press-magnets are respectively included in the two line wires, andwhen the type-wheels have been placed in any required position, by meansof a current through either of the type-wheel electromagnets, theneither a prolonged current or a current of increased strength is causedto traverse the same line wire, and this serves to vitalize thecorresponding press-magnet. This press-magnet acts upon an armatureleversimilar to those employed for revolving the type-wheels, and, through asuitable system of levers, actuates the press-lever. Both thepress-magnets are constructed in the same manner and either one servesto operate the press-lever.

For the purpose of printing from one or the other type-wheel, asdesired, a shifting device operated by a polarized armature is employed.The type-wheels may be driven by currents of either polarity, and inlike manner the printing may be effected regardless of the polarity ofthe currents; but currents of one polarity will move the polarizedshifting armature in one direction, and currents of the other polaritywill move it in the opposite direction. The special devices operated bythis armature will be described in detail, in connection with thedrawings.

In the drawings, Figure 1 is a side elevation, partly in section, of aninstrument embodying the features of the invention. Fig. 2 is atransverse section of the same. Fig. 3 is 'an elevation of the front ofthe instrument. Fig.4 is a plan view of the same and Fig. 5 illustratescertain details.

Referring to the figures, A and A represent two type-wheels, the formerof which is designed to carry essentially numerals, and is termed thefigure type-wheel, and the latter carries letters These wheels aremounted upon a shaft A. The shaft carries a toothed wheel B which mesheswith two pinionsB and B The pinion B is carried upon an arbor c,carrying an armature G. The pinion B is carried upon an arbor 0 carryingan armature 0 Two electro-magnets D and D respectively included in mainlines L and L act upon the armaturesO and G The armatures are eachconstructed, with forwardly projecting arms 6', e which are preferablycurved in arcs of circlesslightly eccentric, with reference to thecenters of the arbors, so that the ends of the arms e, e are nearer thecenters of the arbors, than the ends of the arms e, from which theyextend. The ends of the arms 6 may with advantage be curved to conformwith arcs of circles, concentric with the centers of the arbors. Thepolepieces of the electro-magnets D and D extend laterally toward thecorresponding armatnres, and they are preferably prolonged upon one sideforming sections of circularfields, for the armatnres, as shown at d, dand (1 (P. The armatures are so placed with reference to the pinionsmeshing with the wheel 13, that when one armature is drawn into itsclosest proximity to the poles of the electromagnet, then the otherarmature will be away from the poles of its electromagnet, and thus whenone armature is in position to be attracted by its electro-magnet, theother will be in a position of rest, with reference to its magnet. Thepeculiar form of the armature-levers and the pole-pieces insures that,when the magnets are alternately vitalized, they will be driven forwardstep-by-step, thus advancing the type-wheel shaft. A ratchet wheelf,upon the shaft A, and a pawlf prevent a backward movement of thetype-wheel shaft. Two press-magnets G and G2 are also respectivelyincluded in the lines L and L These magnets are constructed with singlestraight cores g and g respectively, and surrounding coils h h and 7&27L2. The coils are preferably separated slightly at the centers of thecores, for the purpose of allowing a rockshaft H to pass between them.This shaft carries two armatures J and J which are respectively appliedto polar extensions j j and j j of the electro-magnets G and G Theseextensions are brought from the respective poles of the correspondingmagnets, in a direction parallel to the cores, and are prolonged andcurved at their ends in a manner similar to the extensions of themagnets D and D The armatures J and J are similar in construction to thearmatures C and 0 but they are so placed upon the shaft J, that when themagnet G is vitalized, the shaft will be turned in one direction andwhen the magnet G is vitalized it is turned in the opposite direction.It is not designed to complete a revolution, however, but after theattraction of one or the other of the magnets, it is returned to itsnormal position by means of a spring or weight if applied to apress-lever K. The rock shaft H, carries two oppositely projecting armsIt and k to the ends of which two links and k are pivoted. These linksare respectively connected, by means of slots k and pins k with thelever K, so that whenever the shaft H is moved by either armature, thelever K will be actuated. The weight of the lever, assisted by a spring15 if it is desired, returns the lever to its normal position, when thearmatu res are released, and at the same time returns the shaft H to itsnormal position. The lever K serves to actuate a press-mechanismconsisting of two printing-platensaandafirespectivelyapplied to the twotype-wheels A and A One or the other of these platens is raisedaccordingly,

as a movable arm n is in the position shown in the drawings, or in areverse position. The press-lever when actuated raises a plate Ncarrying a lug p. This is designed to engage one or the other of twopawls n or n which are pivoted to the respective rods 0' and 0 whichcarry the platens. One or the other of these pawls is tilted so that itwill not be engaged by the lug p accordingly as the rod or is in theposition shown in Fig. 5 or the reverse. This is accomplished by meansof two arms 16' and a carried by the rod and respectively engaging arms10" and 21; upon the pawls. When the rod 11 is in the position shown,then the arm 10 engages the arm a and throws the pawl 97, out of thepath of the lug p. When the arm is moved in the opposite direction thearm '16 engages the arm a and tilts the pawl it out of the path of thelug. At the same time the pawl 12 is released. In this manner one or theother of the platens will be thrust against its typewheel, each time thepress-lever is actuated.

For the purpose of releasing the platens when an impression is effectedthe pawls n and n are respectively constructed with arms 9" and r whichare respectively engaged by adjustable banking screws 3' and s \Vhen theplatens have thrust the paper against the tpye-wheels, these screws tripthe pawls from the lug p, and allow the corresponding platen to fallimmediately even though the press lever may remain up.

The position of the rod n, is determined by,

means of a polarized armature T supported at its center by an arbor q.The respective poles t and t of this armature are extended intoproximity to the extension of one pole of each electro-magnet G and GWhen either magnet is vitalized by a current of a given polarity, thenthe armature T will be rocked in a given direction, but when it isvitalized by a current of the opposite polarity, then the armature willbe rocked in the opposite direction, and in whichever position it isplaced it will remain until the direction of the current is reversed; sothat if the instrument is operated by currentsof one polarity, thearmature will be in one position, but if operated by currents of theother polarity, the armature will be placed in the opposite position. Asalready stated, the instrument may be operated by currents of eitherpolarity at will. The arbor q carries an arm g, which islinked to anangle-arm g supported upon a pivot g". This in turn is connected withthe rod n, and thus the movements of the rod 12 are controlled by thearmature T, so that when it is desired to print from one type-whee1,theinstrument is operated by currents of a given polarity, and when it isdesired to print from the other wheel, the instrument is operated bycurrents of the opposite polarity.

It is designed that any suitable form of transmitting apparatus shall beemployed for sending currents required for operating the instrument. Inthe drawings there is shown IZC a theoretical diagram, illustrating amethod of organizing apparatus for transmitting the required currents.In this diagram, R represents a key for transmitting currents from abattery 0 upon the lines L and L alternately, and R represents a key forincreasing the. strength of the current at any time sent to either line,by cutting out a resistance R. A current-reversing or pole changingswitch R serves to determine the polarity of the current sent to line.

For the purpose of preventing the paper from being thrust against onewheel when an impression is being taken from the other an arm ,1) havingtwo fingers o and o -is employed. This arm is attached to the rod 12 andmoves back and forth with it. When the parts are in position to operatethe platen a the finger o is above the edge of the paper over the platena so that as the platen a carries the paper against the wheel A, it isheld back from the wheel A When the rod n is moved in the oppositedirection, the finger Q) holds the paper away from the type-wheel A.

I claim as my invention 1. The combination of two main lines, twoelectro-magnets respectively included therein, two armaturesrespectively applied to said electro-magnets, a type-wheel shaft and twotype-wheels thereon revolved by the alternate actions of saidelectro-magnets, two pressmagnets respectively included in said mainlines, a single press-leveracted upon by either of the press-magnets,and a polarized armature applied to the last named electro-magnets, fordetermining from which of said typewheels an impression shall beeffected.

2. The combination of two independent electro-magnets, two armaturesrespectively applied thereto, their respective shafts, a typewheel shaftand a mechanical connection between said armatures and said type-wheelshaft, whereby each armature is alternately advanced by avit-alizationof its electro-magnot and by the action of the other armature, throughthe type-wheel shaft and said mechanical connection, substantially asdescribed, two type-wheels upon said type wheel shaft, and means,substantially as described, for effecting impressions from saidtypewheels.

3. The combination with a type-wheel shaft,

of two independent electro-magnets, two armatures respectivelycontrolled by said electro-magnets, for advancing said shaft, twoarmature-shafts respectively carrying said armatures, and a connectionbetween the armature-shafts whereby each armature is alternatelyadvanced by the operation of the other armature, andby the action of itsown electro-magnet, and two type-wheels upon said type-wheel shaft, andmeans, substantially as described, for effecting impressions from saidtype-wheels.

4. In a printing telegraph instrument, the combination of twoelectro-magnets, two magnetically independent revolving armatures Irespectively applied thereto, a type-wheel, its

shaft, and a gear connection between said armatures' and said shaft.

5. The combination of a type-wheel shaft, a gear-wheel upon said shaft,two revolving armatures, their arbors, pinions upon said arbors meshingwith said gear-wheel, two electro-magnets alternately acting upon'saidarmatures, a press-mechanism, and means for actuating said mechanismoperated by a current transmitted through either of said elec-'tro-magnets.

6. The combination of a type-wheel shaft, two electro-magnets inindependent circuits for revolving said shaft, two press-magnetsrespectively included in said circuits, a presslever, an oscillatingshaft for operating said press-lever, and two oscillating armature-s foroperating said oscillating shaft.

7. The combination, substantially as here inbefore set forth, oftwdtype-wheels, means for determining the position of the same, twoprinting-platens, a single press-lever, two independent press-magnetsrespectively adapted to operate said press-lever, and armatures appliedto said electro-magnets for determining which of said platens shall beactuated.

8. The combination of-a press-lever, an electro-magnet having polarextensions pro- 3 ecting toward each other, a centrally pivoted armaturewithin the field of said extensions, and a connection between saidarmature and lever, substantially as described.

9. The combination, substantially as hereinbefore set forth, of twoelectro-magnets, a press-lever actuated by either electro-magnet, apolarized armature applied to both magnets and a shifting deviceoperated by said polarized armature.

10. In a printing telegraph instrument, the combination of singlepress-lever, two electromagnets, and their armatures for operating saidlever, polar extensions to said electromagnets, a polarized armatureapplied to said extensions, a platen-shifting bar, and a mechanicalconnection between said'bar and polarized armature, substantially suchas described. I

1 1. The combination, substantiallyas hereinbefore set forth, of anoscillating shaft, two electro-magnets, either of which may operate suchshaft, a press-lever, and two links connecting such shaft with saidpress-lever, substantially as described.

12. In a printing-telegraph instrument, two armatures, and twoelectro-magnets for operating the same, a single press-lever,a linkconnection between said armatures, and said lever, and type-wheels fromwhich impressions are taken, by the action of said lever.

13. The combination of two type-wheels, two printing-platens, a singlepress lever, two independently movable rods carrying said platens, two'pawls respectively pivoted to said rods and actuated by saidpress-lever, and mechanism for throwing either pawlout of engagementwith said lever at will.

14. The combination, substantially as hereinbefore set forth, of twotype-wheels, two platens applied thereto, a press-lever, two pawlsrespectively designed to actuate said platens, means for throwing eitherof said pawls into engagement with said press-lever and at the same timedisengaging the other therefrom.

15. The combination, substantially as hereinbefore set forth, of atype-wheel, a printing platen, its lever, a mechanical connectionbetween the platen and lever, and a tripping device for releasing theplaten from the lever when an impression is effected.

16. The combination, substantially as hereinbefore set forth, of twotype-wheels, two independently movable platens, a platen shifting devicefor causing one or the other of the platens to be operated at will, alaterally movable paper guard having two fingers extending above theedges of the paper, and means whereby said guard is moved laterally bythe moving platen-shifting device to interpose one finger between onetype-wheel and the corresponding edge of the paper and simultaneouslymove the other finger from between the other type-wheel and the otheredge of the paper, and vice versa, according to thedirection in whichthe platen shifting device is operated.

17. lhe combination, substantially as set forth, of two type-wheels, twoindependent main lines, two independent electro-magnets respectivelyincluded in said main lines, the armatures of said magnets adapted toalternately impart impulses of rotation tosaidtypewheels, means fortransmitting impulses of electricity alternately over the two main linesto advance the type-wheels step by step, an independent press magnetineach main line, a press-lever operated thereby, a platenshifting-device, means for operating the shiftingdevice in one directionby a printing current of one polarity over either line and in theopposite direction by a printing current of opposite polarity overeither line, and means for transmitting over either line printingcurrents of either polarity.

In testimony whereof I have hereunto subscribed my name this 18th day ofFebruary, A. D. 1886.

ROBERT J. SHEEl-IY.

Witnesses:

DANL. W. EDGECOMB, CHARLES A. TERRY.

